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Yang, Changduk
Advanced Tech-Optoelectronic Materials Synthesis Lab (ATOMS)
Research Interests
  • Optoelectronic materials synthesis/organic electronics, functionalization of carbonaceous solids, advanced materials chemistry, macromolecular chemistry

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Silicon and oxygen synergistic effects for the discovery of new high-performance nonfullerene acceptors

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Title
Silicon and oxygen synergistic effects for the discovery of new high-performance nonfullerene acceptors
Author
Qin, YingChen, HuiYao, JiaZhou, YueCho, YongjoonZhu, YulinQiu, BeibeiJu, Cheng-WeiZhang, Zhi-GuoHe, FengYang, ChangdukLi, YongfangZhao, Dongbing
Issue Date
2020-11
Publisher
Nature Publishing Group
Citation
NATURE COMMUNICATIONS, v.11, no.1, pp.5814
Abstract
In organic electronics, an aromatic fused ring is a basic unit that provides -electrons to construct semiconductors and governs the device performance. The main challenge in developing new pi -skeletons for tuning the material properties is the limitation of the available chemical approach. Herein, we successfully synthesize two pentacyclic siloxy-bridged pi -conjugated isomers to investigate the synergistic effects of Si and O atoms on the geometric and electronic influence of pi -units in organic electronics. Notably, the synthesis routes for both isomers possess several advantages over the previous approaches for delivering conventional aromatic fused-rings, such as environmentally benign tin-free synthesis and few synthetic steps. To explore their potential application as photovoltaic materials, two isomeric acceptor-donor-acceptor type acceptors based on these two isomers were developed, showing a decent device efficiency of 10%, which indicates the great potential of this SiO-bridged ladder-type unit for the development of new high-performance semiconductor materials.Developing a new pi -skeletal aromatic fused-ring for tuning material properties in organic electronics is still a challenge due to limited chemical approach. Here, the authors enrich the chemistry by synthesizing SiO-bridged ladder-type pi -skeletons with enhanced planarity and deeper energy levels than CO-bridged counterpart.
URI
https://scholarworks.unist.ac.kr/handle/201301/49288
URL
https://www.nature.com/articles/s41467-020-19605-z
DOI
10.1038/s41467-020-19605-z
ISSN
2041-1723
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